bradley



(No Model.) 2 Sheets-Sheet 1.

B. G. BRADLEY.

SKIM PLOW 0R GOLTEB..

No. 270,628. Patented Jan. 16,1883.

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757m y @may 2 Sheets-Sheet 2.

(No Model.)

B. G. BRADLEY.

SKIM PLOW OR GOLTER.

Patented Jan. 16,1883.

Y NiTED 4STATES PATENT OFFICE..

BYRON C. BRADLEY, CF CHICAGO, I'LLINOIS, ASSIGNOR TO THE FU`RST StBRADLEY MANUFACTURING COMPANY, OF SAME PLACE.

-sK|M PLOW R COLTER.

SPECIFICATION forming part of Letters `Patent No.'27;0,628, datedJanuary 16, 1883.

Application tiled June 19, 1882. (No model.)

State of Illinois, and a citizen of the United.

States, have'invented a new and useful ,Improvemcnt in Skim Plows orColters, of which the following is a full description, reference Y beinghad to the accompanying drawings, in

which- Figure l is a side elevation with the beam broken, showing thefurrow side ot' the plow; Fig. 2, a detail, being a top or plan view,showing the upper attaching-bracket for the skim plow or colter; Fig. 3,a side elevation with the beam and handle broken,showing the land sideofthe plow; Fig. 4, a cross-section through the beam, showingv the skimplow or colter shank broken audits attaching-brackets; Fig. 5, a detailshowing the upper attaching-bracket; Fig. 6, a detail showing thestandard of the skim plow or colter; Figs. 7 and 8, details showing thelower or under attachingbracket for the skim plow or colter. A

Theobject of this invention is to attach a skim plow or colter to theplow-beam, so that it can be adjusted both vertically and transverselyto regulate the cutting; and its nature consists in the novelconstruction and arrangement of the attaching-brackets and standard orshank ofthe skim plow or colter in their relation to each other and tothe plow-beam, asY

hereinafter more specifically pointed out and described.

In the drawings, A represents a skim plow or colter of any ot' the usualand well-known forms of construction.

B is a standard or shank, made of wrought metal or other suitablematerial, to the lower end of which the skim plow or colter is fastenedin any suitable manner. This standard or shank is bent in the formshown, or other approximate form which'will give the plow or colter therequisite hang when the parts are in position. This standard or shank,at its upper end, is provided with a circular opening, t', and is alsoprovided with a hole or opening, a, located to pass the attaching-boltthrough the slot of the attaching-bracket in securing the plow or colterin different positions.

C C represent the lower or under attachingbracket, made ot' a singlepiece of wrought-iron or other suitable material, bent or otherwiseformed to have the twoparts stand4 at right angles, or nearly so, toeach other. The portion C, as shown, has a curved form, the curve beingthat which the standard or shank describes in swinging. This portion Cis provided with a slot, c, also having a curved forni corresponding tothe swing of the standard or shank, through which slot a bolt, b,passes, by means ot' which the standard or shank B is. attached to partC, thel bolt passing through the openingl or hole c in the standard. Thebolt b, after being passed through the standard and bracket and thestandard adjusted properly, is held in position in the slot by applyingthe nut and setting it down, clamping the standard B irmly in whateverposition it may be adjusted.

a and allow the skim-colter to be raised andlowered'.

D is abracket, made of wrought-iron or other suitable material, andhavin'gacircular shank or stem, D,t'he end of which's screw-threaded toreceive a nut, It. This bracket or plateD is provided with alongitudinal slot, f, through which the stem of'a bolt, g, passes, whichbolt passes through the plow-beam and attaches the bracket or plate tothe top of the beam. rI his same bolt, g, is also one of the bolts bywhich the standard ofthe main plow is attached to the beam. The shank orstem Dl receives the upper end of the standard or shank B,passingthrough the opening t, and forms a pivot on which the standard can turnor swing and be raised or lowered, and the standard or shank, when inposition, is locked or held by the nut h on theend of stem D. Thelongitudinal slot d in part Cl and the longitudinalslotfin part D allowthe parts C C D to be adjusted in or out, by which adjustment the plowor colter can be set to cut at the desired distance.

E is the plow-beam; F, the beam-strap, of wrought-iron or other suitablematerial, at-

By loosening the nut thev -position ofthe standard can be changed. The

IOO

tached to the under side of a wooden beam for the purposeofstrengthening the beam, its rear end being' attached to a clevispivoted to the main plow-standard, as shown; Gr, the main plow-standard;H, the plow; I, the handles;

J, the draft-clevis. rlhe parts represented bythe letters E F G H I Jare to be ot' any of the usual and well-known forms of construction andarrangement for these parts.

The attachment of the skim plow or colter is made as follows: Thebracket@ C is attached to the under side ofthe beam, or, as shown, tothe underside of the beam-strap, by passing a bolt, e, through the slotd and strap and beam, and the bracket or plate I) is attached to theupper edge ofthe beam by passing the bolt g through the slotf and beam,and the clampnuts are screwed down on the endsot' the bolts e g.Theupper end ot' the standardBisslipped onto the end or shank D and theclampingnut la screwed down. rlhe bolt b is passed through the slot cand the openingl a and the clampingnut screwed down, securing theplow orcolter in position.

When attached, the plow or colter can be adjusted to cuta\\'ideornarrowstrip very readily and easily, and all thatis necessary to bedone toadjust for t-he width ot' strip is to loosen the clamping-nuts of thebolts e g and move the brackets or plates in or out, as required; and toadjust the depth of cut Iall that has to be done is to loosen theclamping-nut ofthe bolt b and turn the standard or shank on its pivotalpoint, as required, to raise or lower the plow or col ter, and after thedesired adjustment is made again tighten the clamping-nuts. Thisarrangement furnishes a ready means for attachment of the skim plow orcolter, and one by which such attachnieuts iliade adjustable bothlaterally and vertically, and by locating the brackets as described itwill be seen that one bracket is attached by the same bolt attaching themain standard, and Where abeamstrap is used the other bracketcan beattached by the rear bolt for such stra-p, so that an increase in thenumber ot' bolts is not required, and the weakening ot' the beam byextra holes for attachment of the bracket is avoided.

The devices are very simplein their construetion, can be easily appliedto any ot' the ordinary forms of plows, and although primarily designedfor use with a wooden beam they can be used with other forms ot' beams.

What I claim as new, and desire to secure by Letters Patent, is-

The combination, with the plow-beam,0f the upper bracket, D, having anattached shank, D, the under bracket formed with the rightangled parts Uand U, the latter having the slot c, and the standard B, carrying a skimplow or colter, A, and hung at its upper end to swing on the shank ofthe upper bracket for raising and lowering the skim plow or colter, saidstandard being connected with the slotted portion ofthe under bracket bya bolt, b, adjustable in the slot thereof, substantially as described.

BYRON C. BRADLEY.

W i tnesses:

ALBERT Il. ADAMS, EDGAR T. BOND.

